Key statistics
Satellite GORIZONT 21 at a glance.
Uptime
12778
Days in orbit
Revolutions
≈ 1.0
Per day
Orbit
OTHER
Other
Inclination
13.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for GORIZONT 21.
Object identification
Identified? True
Debris? False
Object name: GORIZONT 21
International designator: 1990-094A
Object number (NORAD): 20923
Object ID (CCSDS): 20923
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 1436.126 minutes
Inclination: 12.9598 deg
SMA: 42165.296 km
Apoapsis: 35821.207 km
Periapsis: 35753.114 km
RAAN: 338.402 deg
Eccentricy: 0.00080746
Argument of periapsis: 257.177 deg
Mean anomaly: 282.6538 deg
Mean motion: 1.00269775 rev/day
Mean motion (dot): -0.00000235 rev/day2
B* drag term: 0.0 1/REarth
Two-line elements (TLE)
Creation date: Oct. 28, 2025, 2:18 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 27, 2025, 10:19 p.m. UTC
TLE line 0: 0 GORIZONT 21
TLE line 1: 1 20923U 90094A 25300.93033604 -.00000235 00000-0 00000-0 0 9997
TLE line 2: 2 20923 12.9598 338.4020 0008075 257.1770 282.6538 1.00269775128126
Live tracking on map
Real-time ground track for satellite GORIZONT 21.
Associated space launch
Geostationary communications satellite
GORIZONT 21 was lifted into orbit during the mission ‘Proton | Gorizont 21’, on board a Proton space rocket.
The launch took place on Nov. 3, 1990, 2:40 p.m. from 81/23 (81L).
For more information about the launch, click the button.
Proton | Gorizont 21
Agency: N/A
Status: Launch Successful
Launch date: Nov. 3, 1990, 2:40 p.m. UTC
Rocket: Proton
Launch pad: 81/23 (81L)
Location: Baikonur Cosmodrome, Republic of Kazakhstan
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